Abstract
The guidance system of electromagnetic suspension high speed maglev train is a complex coupled nonlinear system, which will be subjected to complex interference force during its operation. Due to the external interference and the change of system parameters, the controller based on single linearization model can not maintain good control performance all the time. Aiming at this problem, the Active Disturbance Rejection Controller (ADRC) of the guidance system is designed. Firstly, the guidance system model is established and the classical linear quadratic regulator (LQR) is designed. Secondly, a linear extended state observer (LESO) and an active disturbance control law are designed. Finally, the two algorithms are simulated in the nonlinear model of the guidance system. The results show that the ADRC is more robust and the control effect is satisfying when adding disturbance force and gap disturbance in the guidance system.
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